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Hot classrooms stifle learning: A silent crisis
5 Jun
Summary
- Over half of classroom temperature readings in Gauteng indicated caution.
- Absenteeism increased significantly at temperatures above 25°C.
- Rural classrooms were hotter and more variable than urban ones.
Climate change is making southern African classrooms dangerously hot, impacting children's ability to learn and stay healthy. Research in Gauteng found over half of classroom temperature and humidity readings raised concerns. Studies indicate that absenteeism increases when temperatures exceed 25°C, and concentration levels drop significantly. Young children are particularly vulnerable due to their less efficient heat regulation.
Rural schools often experience higher and more variable indoor temperatures compared to urban ones, where temperatures are better managed between 25°C-28°C. This disparity deepens educational and health inequalities. Poor ventilation, overcrowding, and lack of airflow in many schools contribute to extreme indoor heat, effectively turning classrooms into heat traps.
Beyond academic performance, extreme heat poses health risks, including headaches, dizziness, and exacerbating existing conditions like asthma. Teachers also face fatigue and stress. Despite these clear risks, many schools lack adequate heat-health plans. Experts emphasize the need for better building design, shade, improved ventilation, and access to drinking water to adapt education systems for a hotter future.
